Flexural characteristics of D-gun sprayed functionally graded alumina and alumina-zirconia ceramic composites coatings. (13th September 2010)

• Record Type: Journal Article
• Authors: Rajakumar, Sundaram; Vijayaraghavan, L.; Mayuram, M.M.; Krishnamurthy, R.
• Is Part Of: International journal of materials engineering innovation. Volume 1:Number 3/4(2010)
• Page Start: 398
• Page End: 416
• Publication Date: 2010-09-13
• Subjects: detonation gun -- D-gun coating -- functionally graded coating -- FGC -- flexural characterisation -- XRD -- acoustic emission -- alumina -- zirconia -- ceramic composites -- coatings -- three-point bending -- load deformation -- modulus of rupture -- thermal spraying; Materials science -- Periodicals; Materials -- Research -- Periodicals; Materials -- Technological innovations -- Periodicals; 620.11
• Languages: English
• ISSNs: 1757-2754

Abstract

Detonation gun (D-gun) sprayed alumina and alumina-zirconia ceramic composite are evaluated as monolayered and functionally graded coatings (FGC). The coated specimens are subjected to three-point bending test to assess their flexural response. From the load deformation characteristic of the ceramic deposits, while alumina as a monolayer (ALM) exhibit high modulus of rupture (MOR). Alumina-zirconia FGC (AZG2) has better flexure properties. Structure property relationship and response of acoustic emission from flexure specimen supplement this observation.